AuntSharonlookssleepy.Shetobedverylatelastnight.AuntSharonlookssleepy.Shetobedverylatelastnight.A.canhavegoneB.musthavegoneC.wouldhavegoneD.shouldhavegone为什么选B啊?我觉得应该是选D啊

Question

Aunt Sharon looks sleepy.She _ to bed very late last night.
Aunt Sharon looks sleepy.She _ to bed very late last night.
A.can have gone
B.must have gone
C.would have gone
D.should have gone
为什么选B啊?我觉得应该是选D啊

Answer 1

B表示对过去的肯定推测
D意思为本应该 是表示你没有做什么事 但是应该这么做
根据题意是推测她睡得晚